2115773660 has 96 divisors (see below), whose sum is σ = 5965650432. Its totient is φ = 608728320.

The previous prime is 2115773651. The next prime is 2115773669. The reversal of 2115773660 is 663775112.

It is an interprime number because it is at equal distance from previous prime (2115773651) and next prime (2115773669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115773669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32822 + ... + 72861.

It is an arithmetic number, because the mean of its divisors is an integer number (62142192).

Almost surely, 2^2115773660 is an apocalyptic number.

2115773660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115773660 is an abundant number, since it is smaller than the sum of its proper divisors (3849876772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115773660 is a wasteful number, since it uses less digits than its factorization.

2115773660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105723 (or 105721 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 2115773660 is about 45997.5397168153. The cubic root of 2115773660 is about 1283.7774278340. Note that the first 3 decimals are identical.

The spelling of 2115773660 in words is "two billion, one hundred fifteen million, seven hundred seventy-three thousand, six hundred sixty".